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Merck

HPLC Analysis of Benzodiazepines on Ascentis® Express Phenyl-Hexyl with Acetonitrile Mobile Phase

HPLC Analysis of Benzodiazepines on Ascentis® Express Phenyl-Hexyl with Acetonitrile Mobile Phase application for HPLC

材料

分析柱

产品编号
说明
价格

53348-U

Ascentis® Express Phenyl-Hexyl，2.7μm HPLC色谱柱

2.7 μm particle size, L × I.D. 5 cm × 4.6 mm

標準

产品编号
说明
价格

D7282

去甲西泮

analytical standard

O-902

奥沙西泮标准液 溶液

1 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

A-903

阿普唑仑标准液 溶液

1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

C-907

氯硝西泮标准液 溶液

1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

D-907

地西泮标准液 溶液

1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

CONDITIONS

column

Ascentis Express Phenyl-Hexyl, 5 cm x 4.6 mm I.D., 2.7 μm particles (53348-U)

mobile phase

[A] water; [B] acetonitrile; (62:38, A:B)

flow rate

1.4 mL/min

pressure

2600 psi (179 bar)

column temp.

35 °C

detector

UV, 250 nm

injection

2 μL

sample

0.1 g/mL of each in 20% methanol

说明

分析報告

The Phenyl-Hexyl phase of the Ascentis Express product line displays the best selectivity of this sample; selectivity is markedly affected by choice of organic modifier. The application also demonstrates feasibility of fast LC with Ascentis Express by virtue of low backpressure and high efficiency.

法律資訊

Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany

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